Automatic electrical switch



4.lune 24, 1930. R. Q. OWEN 1,766,528

AUTOMATIC ELECTRICAL SWITCH Filed March -1, 1928 www BY 14. ATTORNEY. v

Patented June 24, 1930 UNIT-EQ STTS l. @FFECE ROBERT VAUGPHAN OVEN', OFNEW YGRK, N. Y.

Application filed March 1,

type adapted for intermittent or flash elecl tric signs.

l The invention will be described with reierence to the accompanyingdrawings in which- Figure 1 is a sida elevation, partly in section, ofan embodiment of the invention;

Figure 2 is a fragmentary plan view of that part of the pivoted part etthe magnet carrying tube and its connections with the timer.

In the embodiment illustrated in the drawings, two electromagnets A andB are carried at the ends ot a rocking tube l. r1`ube 1 is providedcentrally of its length with a cross pivot member 2 which is pivotedintermediate the vertical supports Vertical supports 3 are secured byscrews l to an insulation plate 5, the latter being in turn secured to asuitable standard 6.

At its right hand end tube 1 has secured f thereto over insulationsheath 6X the electromagnet A. Front plate 7 of magnet A is providedwith bracket arms 8 supporting an upper apertured boss 9 and a lowerapertured boss 10. r1`he rear disk plate 11 or" the magnet carries anupper bracket 12 and the lower bracket 13. A rod 14 passes through boss9 and through an aperture in bracket 12, and a rod 15 passes throughboss 10 and through an aperture formed in the bracket 13. Connected tothe upper rod is a spring 1G, which spring is also connected to boss 9and connected to rod 15 is a spring 17 which is connected also to bossCarried by rods 14, 15 is an iron disk 18 adapted to be acted upon bythe magnet and drawn toward the latter against the tension of springs 16and 17.

A lead wire 19 from the negative terminal of the battery is connected tothe coil ot magnet A and the coil is also connected by wire 2O with rod14. The circuit through thecoil continues from rod 14- to disk plate 18,through a slide weight 21X (when the latter is in contact with thedisk), and via slide weight 21" to tube 1, 'from tube 1 to a A'TOMATXCELECTRICAL SWITCH 1928. "crial No. 258,387.

switch plate 21 and thence via switch 22 and wire 23 to the positiveside of the battery. rlhus the parts as shown in the drawings are insuch position that the magnet is at the instant ot acting upon diskplateA 18 to cause the latter to sharply move t-o the lett and therebythrow slide weight 21 toward the opposite end of tube 1. Preliminary tosuch action ot the magnet an insulated finger 2e has through engagementwith pivoted switch arm 25 thrown the rollend 25X ot the latter intocontact with a spring switch member 26. YThrough wire 27 connected toswitch plate 21, spring switch member 26 leads current from the positivoside of the battery through switch element 25X, through wire 28 and tothe bank 01"' lights 29, the latter being connected. by wire 30 with thepositive side ot the battery.

As soon as magnet A throws its magnetic torce upon disk plate 18 and thelatter by impact upon slide weight 21X throws the weight to the lett,the circuit through the magnet will be broken .and the weight will passbeyond the pivotal point 2 and will overbalance that end of the tubecausing the latter with magnet B to drop downwardly. Such movement willcarry finger 24 out ot contact with `pivoted switch arm 25 and a spring31 vwill retract switch member 25" trom spring switch member 26 and thecircuit will be broken through the lamps 29. 1n its continued movementdownwardly, thc lett hand end oi tube 1 will carry a linger 32 on diskplate 33 into contact with a pivoted switch arm 811 having a roll switchclement 35 and the latter will come into contact with a spring switchmember 36 by means of wires 37, 37X. Switch members and 36 are adaptedto carry current trom the battery through the bank lights 29, theconnections being the same as those illustrated at the right hand end otthe drawing with respect to magnet A and, therefore, not being shown indetail. hen slide weight 21X moves to the extreme lett in position, itcomes into contact with disk plate 33 and current from the positive sideot the battery is farried via tube 1, the weight, disk plate oli'revolutions of ratchet wheel 41, arm 49.

33, rod 34 and wire 35 to the coil of magnet B and thence through wire36 to the negative side of the battery completing a circuit. The magnetWill thereupon cause a quick motion of plate 33 to the right, causingiinpact u on slide weight 21X and the movement t reof to the right andto the position shown in the drawings. The elements `of magnet B areshown in the drawings in their position immediately prior to the returnto initial position of plate 33 under the influence of springs 38 afteraction on the plate by the magnet B.

T e length of movementof the disk plates 18, 33 may be regulated byadjusting stop members 39 on rods 14, 15. and correspondringgstopmembers 40 onrods 34.

v he invention com rises automatic means for shutting off the evicevafter a predetermined time interval, suchl means comprising a standard Con which is mounted for rotation a ratchet wheel 41- in mesh with a pawl42 pivoted at 43 upon tube 1'. The shaft 44. upon which ratchet wheel 41is mounted carries a pinion 45 in mesh withr a reducing gear 46 which inturn is in meshv with, a gear 4.7 on a shaft 48 carrying.- aA iinger'49.The means just describedcomprises conuentional fonm of reducing gear,and it will.v be seen that after a certain number wille be brought into.contact with the left hand, endof. switch arm 22 and the arm will. beAswung.. in, the directionI of the arrow, Figure 1, causing its end 22xto move from, effective contact plate 21 and tobe carried uponinsulation,- block 50, thus breaking the circuit from the batteryvcausing the device to stop. In its effective position switch arm 22rests upon a stop 51 being held. in. that positionv by, light spring 52,and the actionv of finger 49 upon the swiCh arm. is in oppositiontotbespring, The tensionof t e spring 16, 17, on the one hand. and; 38.011the other hand may be so regulated. proportionately to the magnets and,the weightY 21"v that the latter will be thrown by each magnet beyondthe dead` center. of. the tube 1 so that the latter will movedownwardly` under the gravitationalv influence of theweight and theweight will thereafter slide down into contact With the disk plate `1.8or 33 as the case may be, the grawitational effect of the Weight uponthat l 4end. of the tube being continued, until the switch arm. 25 or34k is actuated.

vHaving described my invent-ionl what Il claim andv desire to secure byLetters Patent is as follows 1. An automatic timing switch, comprising apivoted. rocking member, a weight carried by andmovable relativelytosaid. rocking member, opposed magnets carried by the rocking member,one magnet at each end thereof, andmembers actuated by saidi magweightand magnet late and a circuit closf ing member mechanically acted uponby the rocking tube. y

In testimony whereof, I have signed my name to this specification.

ROBERT VAUGHAN OWEN.

